Misc: What is the centre of an archery target called?

Questions

President John Kennedy assasinated in Dallas; Lee Harvey Oswald is assumed to have been the assasin.?

UN Security council passes resolution 242, declaring that Israel must give back land won in the 6 day war.?

Beatles release "The Beatles", their only double album.?

Otto I (the Great), German king, Holy Roman emperor (962-73)?

Alfonso X (the Wise), king of Castile and Leon (1252)?